/* ===== Design Tokens ===== */
:root {
  --accent: #D4968F;
  --accent-from: #DDA6A0;
  --accent-to: #C4847C;
  --accent-gradient: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  --accent-soft: rgba(212, 150, 143, 0.12);

  --bg: #FAF7F5;
  --card-bg: #FFFFFF;
  --card-bg-elevated: #F5F0EE;
  --text-primary: #1C1820;
  --text-secondary: #7A7582;
  --text-tertiary: #AEA8B4;
  --success: #4DA65C;
  --error: #D44040;
  --border: rgba(122, 117, 130, 0.1);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font: -apple-system, "SF Pro Rounded", system-ui, "Hiragino Sans", sans-serif;
  --max-width: 760px;
  --section-gap: 80px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F0D12;
    --card-bg: #1A1720;
    --card-bg-elevated: #232030;
    --text-primary: #F0ECE8;
    --text-secondary: #9894A0;
    --text-tertiary: #5C5866;
    --border: rgba(212, 150, 143, 0.1);
  }
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { text-decoration: underline; }

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-gap) 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 40px;
}

/* ===== Navigation ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 245, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
  .site-nav {
    background: rgba(15, 13, 18, 0.85);
  }
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}
.nav-logo:hover { text-decoration: none; }

.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-logo span {
  font-weight: 700;
  font-size: 1rem;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.nav-links a:hover { color: var(--accent); text-decoration: none; }

.lang-toggle {
  display: flex;
  align-items: center;
  border: 1px solid rgba(212, 150, 143, 0.4);
  border-radius: 20px;
  overflow: hidden;
  font-size: 0.75rem;
}

.lang-toggle a {
  padding: 4px 12px;
  color: var(--text-secondary);
  font-weight: 500;
}
.lang-toggle a:hover { text-decoration: none; color: var(--accent); }

.lang-toggle a.active {
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 600;
}

/* ===== Hero ===== */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  margin: 0 auto 28px;
  box-shadow: 0 8px 32px rgba(212, 150, 143, 0.3);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero h1 .accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-mosaic {
  margin: 56px auto 0;
  max-width: 560px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
  .hero-mosaic {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  }
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: opacity 0.2s, transform 0.15s;
  box-shadow: 0 4px 16px rgba(212, 150, 143, 0.35);
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); text-decoration: none; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: 1.5px solid rgba(212, 150, 143, 0.5);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background 0.2s;
}
.btn-secondary:hover { background: var(--accent-soft); text-decoration: none; }

.appstore-badge img {
  height: 48px;
  width: auto;
  transition: opacity 0.2s;
}
.appstore-badge:hover img { opacity: 0.85; }
.appstore-badge:hover { text-decoration: none; }

/* ===== Feature Cards ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.03);
  border: 1px solid var(--border);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
  display: block;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ===== Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--border);
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--accent);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 12px;
  white-space: nowrap;
}

.pricing-plan-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.pricing-price {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.pricing-tagline {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pricing-feature {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pricing-feature .check { color: var(--success); }
.pricing-feature .cross { color: var(--text-tertiary); }

/* ===== CTA Section ===== */
.cta-section {
  text-align: center;
  padding: 60px 0 80px;
}

.cta-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 20px;
}

/* ===== Prose (Privacy / Support) ===== */
.prose {
  max-width: 680px;
  margin: 0 auto;
}

.prose-header {
  margin-bottom: 48px;
}

.prose h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.prose .meta {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.prose section {
  margin-bottom: 36px;
}

.prose h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--accent);
}

.prose p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.highlight-box {
  background: var(--card-bg);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin-bottom: 40px;
  font-size: 0.925rem;
  color: var(--text-primary);
  line-height: 1.7;
}

/* ===== Contact Card ===== */
.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 36px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--border);
  margin-bottom: 48px;
}

.contact-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.email-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-gradient);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
}
.email-link:hover { opacity: 0.9; text-decoration: none; }

/* ===== FAQ Accordion ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border);
}

.faq-item summary {
  list-style: none;
  padding: 18px 20px;
  font-size: 0.925rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 400;
  transition: transform 0.2s;
  flex-shrink: 0;
}

details[open] > summary::after { transform: rotate(45deg); }

.faq-body {
  padding: 0 20px 18px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent); text-decoration: none; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --section-gap: 56px; }

  .hero { padding: 56px 0 40px; }
  .hero h1 { font-size: 1.75rem; }
  .hero-icon { width: 96px; height: 96px; border-radius: 22px; }

  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }

  .nav-links { display: none; }

  .prose h1 { font-size: 1.5rem; }
  .contact-card { padding: 24px; }
}